import Database from 'better-sqlite3';
export interface V1Root {
    id: string;
    prefix: string;
    seq: number;
    created_at: string;
    level_1: string;
    title: string | null;
    links: string | null;
    obsolete: number;
    favorite: number;
    irrelevant: number;
    pinned: number;
    updated_at: string | null;
    access_count: number;
    last_accessed: string | null;
}
export interface V1Node {
    id: string;
    parent_id: string | null;
    root_id: string;
    depth: number;
    seq: number;
    content: string | null;
    title: string | null;
    created_at: string;
    updated_at: string | null;
    obsolete: number;
    irrelevant: number;
    links: string | null;
    access_count: number;
    last_accessed: string | null;
}
export declare function openV1(path: string): Database.Database;
export declare function allRoots(db: Database.Database): V1Root[];
export declare function nodesForRoot(db: Database.Database, rootId: string): V1Node[];
export declare function tagsFor(db: Database.Database, entryId: string): string[];
export declare function parseLinks(text: string | null): string[];